There are two phrases that should not be in the same sentence: donated blood and mass production. Either phrase by itself is just fine; it's the combination that should have tipped officials off that there was a problem. Let me explain.

Somewhere in Transylvania, there's an old family recipe for blood sausages.

See what I mean?

Now to put the rest of it in context, here we go. Two airmen in Germany with this ancient family recipe decided they'd give it a go. Their recipe for traditional Blotwurst sausage called for sausage meat, onions, bacon, spices and breadcrumbs, plus one unique ingredient: human blood. According to the UK Telegraph, the recipe cautioned, "Make sure the blood is fresh and the bacon cubes diced finely with a nice proportion of fat to lean. Do not use too many breadcrumbs but if the blood starts to curdle stir in a teaspoon of wine vinegar."

So for their first batch, they got all the normal ingredients and used their own blood. Without telling others their "secret ingredient," the taste testers loved it.

Buoyed by their apparent success, the two airmen decided to mass produce their blood sausages, but had one problem with producing large quantities. They were tired all the time. Ever the brilliant entrepreneurs, they enlisted others -- their fellow servicemen.

One of the servicemen in the German air force questioned more senior officials, "I have been asked to give blood for sausage-making and I want to know if this is against regulations."

The two airmen were immediately suspended and their interest in "cookery" put to the back burner, so to speak.